The secret to this cup is that the spout is fitted with a philips avent patented non spill valve as your child drinks the valve opens allowing air into the cup enabling the liquid to flow freelywhen your child stops drinking the valve closes again to avoid spillagesplus pointsthe soft spout is tilted to help little ones learn to drink by themselves without having to tip their head back too far ergonomic design with 2 easy to grip handles designed so little hands can have a firm grasp on th